gtk2_ardour/editor_rulers.cc

   1 /*
   2     Copyright (C) 2000 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18     $Id$
  19 */
  20
  21 #include <cstdio> // for sprintf, grrr
  22 #include <cmath>
  23
  24 #include <string>
  25
  26 #include <ardour/tempo.h>
  27 #include <gtkmm2ext/gtk_ui.h>
  28
  29 #include "editor.h"
  30 #include "editing.h"
  31 #include "gtk-custom-hruler.h"
  32 #include "gui_thread.h"
  33
  34 #include "i18n.h"
  35
  36 using namespace sigc;
  37 using namespace ARDOUR;
  38 using namespace PBD;
  39 using namespace Gtk;
  40 using namespace Editing;
  41
  42 Editor *Editor::ruler_editor;
  43
  44 /* the order here must match the "metric" enums in editor.h */
  45
  46 GtkCustomMetric Editor::ruler_metrics[4] = {
  47         {1, Editor::_metric_get_smpte },
  48         {1, Editor::_metric_get_bbt },
  49         {1, Editor::_metric_get_frames },
  50         {1, Editor::_metric_get_minsec }
  51 };
  52
  53 void
  54 Editor::initialize_rulers ()
  55 {
  56         ruler_editor = this;
  57         ruler_grabbed_widget = 0;
  58
  59         _smpte_ruler = gtk_custom_hruler_new ();
  60         smpte_ruler = Glib::wrap (_smpte_ruler);
  61         smpte_ruler->set_name ("SMPTERuler");
  62         smpte_ruler->set_size_request (-1, (int)timebar_height);
  63         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_smpte_ruler), &ruler_metrics[ruler_metric_smpte]);
  64         ruler_shown[ruler_metric_smpte] = true;
  65
  66         _bbt_ruler = gtk_custom_hruler_new ();
  67         bbt_ruler = Glib::wrap (_bbt_ruler);
  68         bbt_ruler->set_name ("BBTRuler");
  69         bbt_ruler->set_size_request (-1, (int)timebar_height);
  70         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
  71         ruler_shown[ruler_metric_bbt] = true;
  72
  73         _frames_ruler = gtk_custom_hruler_new ();
  74         frames_ruler = Glib::wrap (_frames_ruler);
  75         frames_ruler->set_name ("FramesRuler");
  76         frames_ruler->set_size_request (-1, (int)timebar_height);
  77         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_frames_ruler), &ruler_metrics[ruler_metric_frames]);
  78
  79         _minsec_ruler = gtk_custom_hruler_new ();
  80         minsec_ruler = Glib::wrap (_minsec_ruler);
  81         minsec_ruler->set_name ("MinSecRuler");
  82         minsec_ruler->set_size_request (-1, (int)timebar_height);
  83         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_minsec_ruler), &ruler_metrics[ruler_metric_minsec]);
  84
  85         ruler_shown[ruler_time_meter] = true;
  86         ruler_shown[ruler_time_tempo] = true;
  87         ruler_shown[ruler_time_marker] = true;
  88         ruler_shown[ruler_time_range_marker] = true;
  89         ruler_shown[ruler_time_transport_marker] = true;
  90         ruler_shown[ruler_metric_frames] = false;
  91         ruler_shown[ruler_metric_minsec] = false;
  92
  93         smpte_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
  94         bbt_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
  95         frames_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
  96         minsec_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
  97
  98         smpte_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
  99         bbt_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 100         frames_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 101         minsec_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 102
 103         smpte_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 104         bbt_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 105         frames_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 106         minsec_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 107
 108         smpte_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 109         bbt_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 110         frames_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 111         minsec_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 112
 113         visible_timebars = 7; /* 4 here, 3 in time_canvas */
 114         ruler_pressed_button = 0;
 115 }
 116
 117
 118 gint
 119 Editor::ruler_button_press (GdkEventButton* ev)
 120 {
 121         if (session == 0) {
 122                 return FALSE;
 123         }
 124
 125         ruler_pressed_button = ev->button;
 126
 127         // jlc: grab ev->window ?
 128         //Gtk::Main::grab_add (*minsec_ruler);
 129         Widget * grab_widget = 0;
 130
 131         if (smpte_ruler->is_realized() && ev->window == smpte_ruler->get_window()->gobj()) grab_widget = smpte_ruler;
 132         else if (bbt_ruler->is_realized() && ev->window == bbt_ruler->get_window()->gobj()) grab_widget = bbt_ruler;
 133         else if (frames_ruler->is_realized() && ev->window == frames_ruler->get_window()->gobj()) grab_widget = frames_ruler;
 134         else if (minsec_ruler->is_realized() && ev->window == minsec_ruler->get_window()->gobj()) grab_widget = minsec_ruler;
 135
 136         if (grab_widget) {
 137                 grab_widget->add_modal_grab ();
 138                 ruler_grabbed_widget = grab_widget;
 139         }
 140
 141         gint x,y;
 142         Gdk::ModifierType state;
 143
 144         /* need to use the correct x,y, the event lies */
 145         time_canvas_event_box.get_window()->get_pointer (x, y, state);
 146
 147         nframes_t where = leftmost_frame + pixel_to_frame (x);
 148
 149         switch (ev->button) {
 150         case 1:
 151                 /* transport playhead */
 152                 snap_to (where);
 153                 session->request_locate (where);
 154                 break;
 155
 156         case 2:
 157                 /* edit cursor */
 158                 if (snap_type != Editing::SnapToEditCursor) {
 159                         snap_to (where);
 160                 }
 161                 edit_cursor->set_position (where);
 162                 edit_cursor_clock.set (where);
 163                 break;
 164
 165         default:
 166                 break;
 167         }
 168
 169         return TRUE;
 170 }
 171
 172 gint
 173 Editor::ruler_button_release (GdkEventButton* ev)
 174 {
 175         gint x,y;
 176         Gdk::ModifierType state;
 177
 178         /* need to use the correct x,y, the event lies */
 179         time_canvas_event_box.get_window()->get_pointer (x, y, state);
 180
 181         ruler_pressed_button = 0;
 182
 183         if (session == 0) {
 184                 return FALSE;
 185         }
 186
 187         hide_verbose_canvas_cursor();
 188         stop_canvas_autoscroll();
 189
 190         nframes_t where = leftmost_frame + pixel_to_frame (x);
 191
 192         switch (ev->button) {
 193         case 1:
 194                 /* transport playhead */
 195                 snap_to (where);
 196                 session->request_locate (where);
 197                 break;
 198
 199         case 2:
 200                 /* edit cursor */
 201                 if (snap_type != Editing::SnapToEditCursor) {
 202                         snap_to (where);
 203                 }
 204                 edit_cursor->set_position (where);
 205                 edit_cursor_clock.set (where);
 206                 break;
 207
 208         case 3:
 209                 /* popup menu */
 210                 snap_to (where);
 211                 popup_ruler_menu (where);
 212
 213                 break;
 214         default:
 215                 break;
 216         }
 217
 218
 219         if (ruler_grabbed_widget) {
 220                 ruler_grabbed_widget->remove_modal_grab();
 221                 ruler_grabbed_widget = 0;
 222         }
 223
 224         return TRUE;
 225 }
 226
 227 gint
 228 Editor::ruler_label_button_release (GdkEventButton* ev)
 229 {
 230         if (ev->button == 3)
 231         {
 232                 popup_ruler_menu();
 233         }
 234
 235         return TRUE;
 236 }
 237
 238
 239 gint
 240 Editor::ruler_mouse_motion (GdkEventMotion* ev)
 241 {
 242         if (session == 0 || !ruler_pressed_button) {
 243                 return FALSE;
 244         }
 245
 246         double wcx=0,wcy=0;
 247         double cx=0,cy=0;
 248
 249         gint x,y;
 250         Gdk::ModifierType state;
 251
 252         /* need to use the correct x,y, the event lies */
 253         time_canvas_event_box.get_window()->get_pointer (x, y, state);
 254
 255
 256         track_canvas.c2w (x, y, wcx, wcy);
 257         track_canvas.w2c (wcx, wcy, cx, cy);
 258
 259         nframes_t where = leftmost_frame + pixel_to_frame (x);
 260
 261         /// ripped from maybe_autoscroll
 262         nframes_t one_page = (nframes_t) rint (canvas_width * frames_per_unit);
 263         nframes_t rightmost_frame = leftmost_frame + one_page;
 264
 265         jack_nframes_t frame = pixel_to_frame (cx);
 266
 267         if (autoscroll_timeout_tag < 0) {
 268                 if (frame > rightmost_frame) {
 269                         if (rightmost_frame < max_frames) {
 270                                 start_canvas_autoscroll (1);
 271                         }
 272                 } else if (frame < leftmost_frame) {
 273                         if (leftmost_frame > 0) {
 274                                 start_canvas_autoscroll (-1);
 275                         }
 276                 }
 277         } else {
 278                 if (frame >= leftmost_frame && frame < rightmost_frame) {
 279                         stop_canvas_autoscroll ();
 280                 }
 281         }
 282         //////
 283
 284         snap_to (where);
 285
 286         Cursor* cursor = 0;
 287
 288         switch (ruler_pressed_button) {
 289         case 1:
 290                 /* transport playhead */
 291                 cursor = playhead_cursor;
 292                 break;
 293
 294         case 2:
 295                 /* edit cursor */
 296                 cursor = edit_cursor;
 297                 break;
 298
 299         default:
 300                 break;
 301         }
 302
 303         if (cursor)
 304         {
 305                 cursor->set_position (where);
 306
 307                 if (cursor == edit_cursor) {
 308                         edit_cursor_clock.set (where);
 309                 }
 310
 311                 show_verbose_time_cursor (where, 10, cx, 0);
 312         }
 313
 314         return TRUE;
 315 }
 316
 317
 318 void
 319 Editor::popup_ruler_menu (nframes_t where, ItemType t)
 320 {
 321         using namespace Menu_Helpers;
 322
 323         if (editor_ruler_menu == 0) {
 324                 editor_ruler_menu = new Menu;
 325                 editor_ruler_menu->set_name ("ArdourContextMenu");
 326         }
 327
 328         // always build from scratch
 329         MenuList& ruler_items = editor_ruler_menu->items();
 330         editor_ruler_menu->set_name ("ArdourContextMenu");
 331         ruler_items.clear();
 332
 333         CheckMenuItem * mitem;
 334
 335         no_ruler_shown_update = true;
 336
 337         switch (t) {
 338         case MarkerBarItem:
 339                 ruler_items.push_back (MenuElem (_("New location marker"), bind ( mem_fun(*this, &Editor::mouse_add_new_marker), where)));
 340                 ruler_items.push_back (MenuElem (_("Clear all locations"), mem_fun(*this, &Editor::clear_markers)));
 341                 ruler_items.push_back (MenuElem (_("Unhide locations"), mem_fun(*this, &Editor::unhide_markers)));
 342                 ruler_items.push_back (SeparatorElem ());
 343                 break;
 344         case RangeMarkerBarItem:
 345                 //ruler_items.push_back (MenuElem (_("New Range")));
 346                 ruler_items.push_back (MenuElem (_("Clear all ranges"), mem_fun(*this, &Editor::clear_ranges)));
 347                 ruler_items.push_back (MenuElem (_("Unhide ranges"), mem_fun(*this, &Editor::unhide_ranges)));
 348                 ruler_items.push_back (SeparatorElem ());
 349
 350                 break;
 351         case TransportMarkerBarItem:
 352
 353                 break;
 354
 355         case TempoBarItem:
 356                 ruler_items.push_back (MenuElem (_("New Tempo"), bind ( mem_fun(*this, &Editor::mouse_add_new_tempo_event), where)));
 357                 ruler_items.push_back (MenuElem (_("Clear tempo")));
 358                 ruler_items.push_back (SeparatorElem ());
 359                 break;
 360
 361         case MeterBarItem:
 362                 ruler_items.push_back (MenuElem (_("New Meter"), bind ( mem_fun(*this, &Editor::mouse_add_new_meter_event), where)));
 363                 ruler_items.push_back (MenuElem (_("Clear meter")));
 364                 ruler_items.push_back (SeparatorElem ());
 365                 break;
 366
 367         default:
 368                 break;
 369         }
 370
 371         ruler_items.push_back (CheckMenuElem (_("Min:Secs"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_metric_minsec)));
 372         mitem = (CheckMenuItem *) &ruler_items.back();
 373         if (ruler_shown[ruler_metric_minsec]) {
 374                 mitem->set_active(true);
 375         }
 376
 377         ruler_items.push_back (CheckMenuElem (X_("Timecode"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_metric_smpte)));
 378         mitem = (CheckMenuItem *) &ruler_items.back();
 379         if (ruler_shown[ruler_metric_smpte]) {
 380                 mitem->set_active(true);
 381         }
 382
 383         ruler_items.push_back (CheckMenuElem (_("Frames"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_metric_frames)));
 384         mitem = (CheckMenuItem *) &ruler_items.back();
 385         if (ruler_shown[ruler_metric_frames]) {
 386                 mitem->set_active(true);
 387         }
 388
 389         ruler_items.push_back (CheckMenuElem (_("Bars:Beats"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_metric_bbt)));
 390         mitem = (CheckMenuItem *) &ruler_items.back();
 391         if (ruler_shown[ruler_metric_bbt]) {
 392                 mitem->set_active(true);
 393         }
 394
 395         ruler_items.push_back (SeparatorElem ());
 396
 397         ruler_items.push_back (CheckMenuElem (_("Meter"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_meter)));
 398         mitem = (CheckMenuItem *) &ruler_items.back();
 399         if (ruler_shown[ruler_time_meter]) {
 400                 mitem->set_active(true);
 401         }
 402
 403         ruler_items.push_back (CheckMenuElem (_("Tempo"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_tempo)));
 404         mitem = (CheckMenuItem *) &ruler_items.back();
 405         if (ruler_shown[ruler_time_tempo]) {
 406                 mitem->set_active(true);
 407         }
 408
 409         ruler_items.push_back (CheckMenuElem (_("Location Markers"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_marker)));
 410         mitem = (CheckMenuItem *) &ruler_items.back();
 411         if (ruler_shown[ruler_time_marker]) {
 412                 mitem->set_active(true);
 413         }
 414
 415         ruler_items.push_back (CheckMenuElem (_("Range Markers"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_range_marker)));
 416         mitem = (CheckMenuItem *) &ruler_items.back();
 417         if (ruler_shown[ruler_time_range_marker]) {
 418                 mitem->set_active(true);
 419         }
 420
 421         ruler_items.push_back (CheckMenuElem (_("Loop/Punch Ranges"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_transport_marker)));
 422         mitem = (CheckMenuItem *) &ruler_items.back();
 423         if (ruler_shown[ruler_time_transport_marker]) {
 424                 mitem->set_active(true);
 425         }
 426
 427         editor_ruler_menu->popup (1, gtk_get_current_event_time());
 428
 429         no_ruler_shown_update = false;
 430 }
 431
 432 void
 433 Editor::ruler_toggled (int ruler)
 434 {
 435         if (!session) return;
 436         if (ruler < 0 || ruler >= (int) sizeof(ruler_shown)) return;
 437
 438         if (no_ruler_shown_update) return;
 439
 440         if (ruler_shown[ruler]) {
 441                 if (visible_timebars <= 1) {
 442                         // must always have 1 visible
 443                         return;
 444                 }
 445         }
 446
 447         ruler_shown[ruler] = !ruler_shown[ruler];
 448
 449         update_ruler_visibility ();
 450
 451         // update session extra RulerVisibility
 452         store_ruler_visibility ();
 453 }
 454
 455 void
 456 Editor::store_ruler_visibility ()
 457 {
 458         XMLNode* node = new XMLNode(X_("RulerVisibility"));
 459
 460         node->add_property (X_("smpte"), ruler_shown[ruler_metric_smpte] ? "yes": "no");
 461         node->add_property (X_("bbt"), ruler_shown[ruler_metric_bbt] ? "yes": "no");
 462         node->add_property (X_("frames"), ruler_shown[ruler_metric_frames] ? "yes": "no");
 463         node->add_property (X_("minsec"), ruler_shown[ruler_metric_minsec] ? "yes": "no");
 464         node->add_property (X_("tempo"), ruler_shown[ruler_time_tempo] ? "yes": "no");
 465         node->add_property (X_("meter"), ruler_shown[ruler_time_meter] ? "yes": "no");
 466         node->add_property (X_("marker"), ruler_shown[ruler_time_marker] ? "yes": "no");
 467         node->add_property (X_("rangemarker"), ruler_shown[ruler_time_range_marker] ? "yes": "no");
 468         node->add_property (X_("transportmarker"), ruler_shown[ruler_time_transport_marker] ? "yes": "no");
 469
 470         session->add_extra_xml (*node);
 471         session->set_dirty ();
 472 }
 473
 474 void
 475 Editor::restore_ruler_visibility ()
 476 {
 477         XMLProperty* prop;
 478         XMLNode * node = session->extra_xml (X_("RulerVisibility"));
 479
 480         if (node) {
 481                 if ((prop = node->property ("smpte")) != 0) {
 482                         if (prop->value() == "yes")
 483                                 ruler_shown[ruler_metric_smpte] = true;
 484                         else
 485                                 ruler_shown[ruler_metric_smpte] = false;
 486                 }
 487                 if ((prop = node->property ("bbt")) != 0) {
 488                         if (prop->value() == "yes")
 489                                 ruler_shown[ruler_metric_bbt] = true;
 490                         else
 491                                 ruler_shown[ruler_metric_bbt] = false;
 492                 }
 493                 if ((prop = node->property ("frames")) != 0) {
 494                         if (prop->value() == "yes")
 495                                 ruler_shown[ruler_metric_frames] = true;
 496                         else
 497                                 ruler_shown[ruler_metric_frames] = false;
 498                 }
 499                 if ((prop = node->property ("minsec")) != 0) {
 500                         if (prop->value() == "yes")
 501                                 ruler_shown[ruler_metric_minsec] = true;
 502                         else
 503                                 ruler_shown[ruler_metric_minsec] = false;
 504                 }
 505                 if ((prop = node->property ("tempo")) != 0) {
 506                         if (prop->value() == "yes")
 507                                 ruler_shown[ruler_time_tempo] = true;
 508                         else
 509                                 ruler_shown[ruler_time_tempo] = false;
 510                 }
 511                 if ((prop = node->property ("meter")) != 0) {
 512                         if (prop->value() == "yes")
 513                                 ruler_shown[ruler_time_meter] = true;
 514                         else
 515                                 ruler_shown[ruler_time_meter] = false;
 516                 }
 517                 if ((prop = node->property ("marker")) != 0) {
 518                         if (prop->value() == "yes")
 519                                 ruler_shown[ruler_time_marker] = true;
 520                         else
 521                                 ruler_shown[ruler_time_marker] = false;
 522                 }
 523                 if ((prop = node->property ("rangemarker")) != 0) {
 524                         if (prop->value() == "yes")
 525                                 ruler_shown[ruler_time_range_marker] = true;
 526                         else
 527                                 ruler_shown[ruler_time_range_marker] = false;
 528                 }
 529                 if ((prop = node->property ("transportmarker")) != 0) {
 530                         if (prop->value() == "yes")
 531                                 ruler_shown[ruler_time_transport_marker] = true;
 532                         else
 533                                 ruler_shown[ruler_time_transport_marker] = false;
 534                 }
 535
 536         }
 537
 538         update_ruler_visibility ();
 539 }
 540
 541
 542 void
 543 Editor::update_ruler_visibility ()
 544 {
 545         using namespace Box_Helpers;
 546         BoxList & lab_children =  time_button_vbox.children();
 547         BoxList & ruler_children =  time_canvas_vbox.children();
 548
 549         visible_timebars = 0;
 550
 551         lab_children.clear();
 552
 553         // leave the last one (the time_canvas) intact
 554         while (ruler_children.size() > 1) {
 555                 ruler_children.pop_front();
 556         }
 557
 558         BoxList::iterator canvaspos = ruler_children.begin();
 559
 560         _smpte_ruler = gtk_custom_hruler_new ();
 561         smpte_ruler = Glib::wrap (_smpte_ruler);
 562         smpte_ruler->set_name ("SMPTERuler");
 563         smpte_ruler->set_size_request (-1, (int)timebar_height);
 564         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_smpte_ruler), &ruler_metrics[ruler_metric_smpte]);
 565
 566         _bbt_ruler = gtk_custom_hruler_new ();
 567         bbt_ruler = Glib::wrap (_bbt_ruler);
 568         bbt_ruler->set_name ("BBTRuler");
 569         bbt_ruler->set_size_request (-1, (int)timebar_height);
 570         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
 571
 572         _frames_ruler = gtk_custom_hruler_new ();
 573         frames_ruler = Glib::wrap (_frames_ruler);
 574         frames_ruler->set_name ("FramesRuler");
 575         frames_ruler->set_size_request (-1, (int)timebar_height);
 576         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_frames_ruler), &ruler_metrics[ruler_metric_frames]);
 577
 578         _minsec_ruler = gtk_custom_hruler_new ();
 579         minsec_ruler = Glib::wrap (_minsec_ruler);
 580         minsec_ruler->set_name ("MinSecRuler");
 581         minsec_ruler->set_size_request (-1, (int)timebar_height);
 582         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_minsec_ruler), &ruler_metrics[ruler_metric_minsec]);
 583
 584
 585         smpte_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 586         bbt_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 587         frames_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 588         minsec_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 589
 590         smpte_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 591         bbt_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 592         frames_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 593         minsec_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 594
 595         smpte_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 596         bbt_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 597         frames_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 598         minsec_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 599
 600         smpte_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 601         bbt_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 602         frames_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 603         minsec_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 604
 605
 606         if (ruler_shown[ruler_metric_minsec]) {
 607                 lab_children.push_back (Element(minsec_label, PACK_SHRINK, PACK_START));
 608                 ruler_children.insert (canvaspos, Element(*minsec_ruler, PACK_SHRINK, PACK_START));
 609                 visible_timebars++;
 610         }
 611
 612         if (ruler_shown[ruler_metric_smpte]) {
 613                 lab_children.push_back (Element(smpte_label, PACK_SHRINK, PACK_START));
 614                 ruler_children.insert (canvaspos, Element(*smpte_ruler, PACK_SHRINK, PACK_START));
 615                 visible_timebars++;
 616         }
 617
 618         if (ruler_shown[ruler_metric_frames]) {
 619                 lab_children.push_back (Element(frame_label, PACK_SHRINK, PACK_START));
 620                 ruler_children.insert (canvaspos, Element(*frames_ruler, PACK_SHRINK, PACK_START));
 621                 visible_timebars++;
 622         }
 623
 624         if (ruler_shown[ruler_metric_bbt]) {
 625                 lab_children.push_back (Element(bbt_label, PACK_SHRINK, PACK_START));
 626                 ruler_children.insert (canvaspos, Element(*bbt_ruler, PACK_SHRINK, PACK_START));
 627                 visible_timebars++;
 628         }
 629
 630         double tbpos = 0.0;
 631         double old_unit_pos ;
 632
 633         if (ruler_shown[ruler_time_meter]) {
 634                 lab_children.push_back (Element(meter_label, PACK_SHRINK, PACK_START));
 635
 636                 old_unit_pos = meter_group->property_y();
 637                 if (tbpos != old_unit_pos) {
 638                         meter_group->move ( 0.0, tbpos - old_unit_pos);
 639                 }
 640                 meter_group->show();
 641                 tbpos += timebar_height;
 642                 visible_timebars++;
 643         }
 644         else {
 645                 meter_group->hide();
 646         }
 647
 648         if (ruler_shown[ruler_time_tempo]) {
 649                 lab_children.push_back (Element(tempo_label, PACK_SHRINK, PACK_START));
 650                 old_unit_pos = tempo_group->property_y();
 651                 if (tbpos != old_unit_pos) {
 652                         tempo_group->move(0.0, tbpos - old_unit_pos);
 653                 }
 654                 tempo_group->show();
 655                 tbpos += timebar_height;
 656                 visible_timebars++;
 657         }
 658         else {
 659                 tempo_group->hide();
 660         }
 661
 662         if (ruler_shown[ruler_time_marker]) {
 663                 lab_children.push_back (Element(mark_label, PACK_SHRINK, PACK_START));
 664                 old_unit_pos = marker_group->property_y();
 665                 if (tbpos != old_unit_pos) {
 666                         marker_group->move ( 0.0, tbpos - old_unit_pos);
 667                 }
 668                 marker_group->show();
 669                 tbpos += timebar_height;
 670                 visible_timebars++;
 671         }
 672         else {
 673                 marker_group->hide();
 674         }
 675
 676         if (ruler_shown[ruler_time_range_marker]) {
 677                 lab_children.push_back (Element(range_mark_label, PACK_SHRINK, PACK_START));
 678                 old_unit_pos = range_marker_group->property_y();
 679                 if (tbpos != old_unit_pos) {
 680                         range_marker_group->move (0.0, tbpos - old_unit_pos);
 681                 }
 682                 range_marker_group->show();
 683                 tbpos += timebar_height;
 684                 visible_timebars++;
 685         }
 686         else {
 687                 range_marker_group->hide();
 688         }
 689
 690         if (ruler_shown[ruler_time_transport_marker]) {
 691                 lab_children.push_back (Element(transport_mark_label, PACK_SHRINK, PACK_START));
 692                 old_unit_pos = transport_marker_group->property_y();
 693                 if (tbpos != old_unit_pos) {
 694                         transport_marker_group->move ( 0.0, tbpos - old_unit_pos);
 695                 }
 696                 transport_marker_group->show();
 697                 tbpos += timebar_height;
 698                 visible_timebars++;
 699         }
 700         else {
 701                 transport_marker_group->hide();
 702         }
 703
 704         time_canvas_vbox.set_size_request (-1, (int)(timebar_height * visible_timebars));
 705         time_canvas_event_box.queue_resize();
 706
 707         update_fixed_rulers();
 708         //update_tempo_based_rulers();
 709         tempo_map_changed(Change (0));
 710
 711         time_canvas_event_box.show_all();
 712         time_button_event_box.show_all();
 713 }
 714
 715 void
 716 Editor::update_just_smpte ()
 717 {
 718         ENSURE_GUI_THREAD(mem_fun(*this, &Editor::update_just_smpte));
 719
 720         if (session == 0) {
 721                 return;
 722         }
 723
 724         /* XXX Note the potential loss of accuracy here as we convert from
 725            an uint32_t (or larger) to a float ... what to do ?
 726         */
 727
 728         nframes_t page = (nframes_t) floor (canvas_width * frames_per_unit);
 729         nframes_t rightmost_frame = leftmost_frame + page;
 730
 731         if (ruler_shown[ruler_metric_smpte]) {
 732                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_smpte_ruler), leftmost_frame, rightmost_frame,
 733                                             leftmost_frame, session->current_end_frame());
 734         }
 735 }
 736
 737 void
 738 Editor::update_fixed_rulers ()
 739 {
 740         nframes_t rightmost_frame;
 741
 742         if (session == 0) {
 743                 return;
 744         }
 745
 746         /* XXX Note the potential loss of accuracy here as we convert from
 747            an uint32_t (or larger) to a float ... what to do ?
 748         */
 749
 750         nframes_t page = (nframes_t) floor (canvas_width * frames_per_unit);
 751
 752         ruler_metrics[ruler_metric_smpte].units_per_pixel = frames_per_unit;
 753         ruler_metrics[ruler_metric_frames].units_per_pixel = frames_per_unit;
 754         ruler_metrics[ruler_metric_minsec].units_per_pixel = frames_per_unit;
 755
 756         rightmost_frame = leftmost_frame + page;
 757
 758         /* these force a redraw, which in turn will force execution of the metric callbacks
 759            to compute the relevant ticks to display.
 760         */
 761
 762         if (ruler_shown[ruler_metric_smpte]) {
 763                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_smpte_ruler), leftmost_frame, rightmost_frame,
 764                                             leftmost_frame, session->current_end_frame());
 765         }
 766
 767         if (ruler_shown[ruler_metric_frames]) {
 768                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_frames_ruler), leftmost_frame, rightmost_frame,
 769                                             leftmost_frame, session->current_end_frame());
 770         }
 771
 772         if (ruler_shown[ruler_metric_minsec]) {
 773                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_minsec_ruler), leftmost_frame, rightmost_frame,
 774                                             leftmost_frame, session->current_end_frame());
 775         }
 776 }
 777
 778 void
 779 Editor::update_tempo_based_rulers ()
 780 {
 781         if (session == 0) {
 782                 return;
 783         }
 784
 785         /* XXX Note the potential loss of accuracy here as we convert from
 786            an uint32_t (or larger) to a float ... what to do ?
 787         */
 788
 789         nframes_t page = (nframes_t) floor (canvas_width * frames_per_unit);
 790         ruler_metrics[ruler_metric_bbt].units_per_pixel = frames_per_unit;
 791
 792         if (ruler_shown[ruler_metric_bbt]) {
 793                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_bbt_ruler), leftmost_frame, leftmost_frame+page,
 794                                             leftmost_frame, session->current_end_frame());
 795         }
 796 }
 797
 798 /* Mark generation */
 799
 800 gint
 801 Editor::_metric_get_smpte (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 802 {
 803         return ruler_editor->metric_get_smpte (marks, lower, upper, maxchars);
 804 }
 805
 806 gint
 807 Editor::_metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 808 {
 809         return ruler_editor->metric_get_bbt (marks, lower, upper, maxchars);
 810 }
 811
 812 gint
 813 Editor::_metric_get_frames (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 814 {
 815         return ruler_editor->metric_get_frames (marks, lower, upper, maxchars);
 816 }
 817
 818 gint
 819 Editor::_metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 820 {
 821         return ruler_editor->metric_get_minsec (marks, lower, upper, maxchars);
 822 }
 823
 824 gint
 825 Editor::metric_get_smpte (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 826 {
 827         nframes_t range;
 828         nframes_t pos;
 829         nframes_t spacer;
 830         nframes_t fr;
 831         SMPTE::Time smpte;
 832         gchar buf[16];
 833         gint nmarks = 0;
 834         gint n;
 835         bool show_bits = false;
 836         bool show_frames = false;
 837         bool show_seconds = false;
 838         bool show_minutes = false;
 839         bool show_hours = false;
 840         int mark_modulo;
 841
 842         if (session == 0) {
 843                 return 0;
 844         }
 845
 846         fr = session->frame_rate();
 847
 848         if (lower > (spacer = (nframes_t)(128 * Editor::get_current_zoom ()))) {
 849                 lower = lower - spacer;
 850         } else {
 851                 lower = 0;
 852         }
 853         upper = upper + spacer;
 854         range = (nframes_t) floor (upper - lower);
 855
 856         if (range < (2 * session->frames_per_smpte_frame())) { /* 0 - 2 frames */
 857                 show_bits = true;
 858                 mark_modulo = 20;
 859                 nmarks = 1 + (2 * Config->get_subframes_per_frame());
 860         } else if (range <= (fr / 4)) { /* 2 frames - 0.250 second */
 861                 show_frames = true;
 862                 mark_modulo = 1;
 863                 nmarks = 1 + (range / (nframes_t)session->frames_per_smpte_frame());
 864         } else if (range <= (fr / 2)) { /* 0.25-0.5 second */
 865                 show_frames = true;
 866                 mark_modulo = 2;
 867                 nmarks = 1 + (range / (nframes_t)session->frames_per_smpte_frame());
 868         } else if (range <= fr) { /* 0.5-1 second */
 869                 show_frames = true;
 870                 mark_modulo = 5;
 871                 nmarks = 1 + (range / (nframes_t)session->frames_per_smpte_frame());
 872         } else if (range <= 2 * fr) { /* 1-2 seconds */
 873                 show_frames = true;
 874                 mark_modulo = 10;
 875                 nmarks = 1 + (range / (nframes_t)session->frames_per_smpte_frame());
 876         } else if (range <= 8 * fr) { /* 2-8 seconds */
 877                 show_seconds = true;
 878                 mark_modulo = 1;
 879                 nmarks = 1 + (range / fr);
 880         } else if (range <= 16 * fr) { /* 8-16 seconds */
 881                 show_seconds = true;
 882                 mark_modulo = 2;
 883                 nmarks = 1 + (range / fr);
 884         } else if (range <= 30 * fr) { /* 16-30 seconds */
 885                 show_seconds = true;
 886                 mark_modulo = 5;
 887                 nmarks = 1 + (range / fr);
 888         } else if (range <= 60 * fr) { /* 30-60 seconds */
 889                 show_seconds = true;
 890                 mark_modulo = 5;
 891                 nmarks = 1 + (range / fr);
 892         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
 893                 show_seconds = true;
 894                 mark_modulo = 20;
 895                 nmarks = 1 + (range / fr);
 896         } else if (range <= 4 * 60 * fr) { /* 2-4 minutes */
 897                 show_seconds = true;
 898                 mark_modulo = 30;
 899                 nmarks = 1 + (range / fr);
 900         } else if (range <= 10 * 60 * fr) { /* 4-10 minutes */
 901                 show_minutes = true;
 902                 mark_modulo = 2;
 903                 nmarks = 1 + 10;
 904         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
 905                 show_minutes = true;
 906                 mark_modulo = 5;
 907                 nmarks = 1 + 30;
 908         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
 909                 show_minutes = true;
 910                 mark_modulo = 10;
 911                 nmarks = 1 + 60;
 912         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
 913                 show_minutes = true;
 914                 mark_modulo = 30;
 915                 nmarks = 1 + (60 * 4);
 916         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
 917                 show_hours = true;
 918                 mark_modulo = 1;
 919                 nmarks = 1 + 8;
 920         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
 921                 show_hours = true;
 922                 mark_modulo = 1;
 923                 nmarks = 1 + 24;
 924         } else {
 925
 926                 /* not possible if nframes_t is a 32 bit quantity */
 927
 928                 show_hours = true;
 929                 mark_modulo = 4;
 930                 nmarks = 1 + 24;
 931         }
 932
 933         pos = (nframes_t) floor (lower);
 934
 935         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
 936
 937         if (show_bits) {
 938                 // Find smpte time of this sample (pos) with subframe accuracy
 939                 session->sample_to_smpte(pos, smpte, true /* use_offset */, true /* use_subframes */ );
 940
 941                 for (n = 0; n < nmarks; n++) {
 942                         session->smpte_to_sample(smpte, pos, true /* use_offset */, true /* use_subframes */ );
 943                         if ((smpte.subframes % mark_modulo) == 0) {
 944                                 if (smpte.subframes == 0) {
 945                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
 946                                         snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
 947                                 } else {
 948                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
 949                                         snprintf (buf, sizeof(buf), ".%02u", smpte.subframes);
 950                                 }
 951                         } else {
 952                                 snprintf (buf, sizeof(buf)," ");
 953                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
 954
 955                         }
 956                         (*marks)[n].label = g_strdup (buf);
 957                         (*marks)[n].position = pos;
 958
 959                         // Increment subframes by one
 960                         SMPTE::increment_subframes( smpte );
 961                 }
 962         } else if (show_seconds) {
 963                 // Find smpte time of this sample (pos)
 964                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
 965                 // Go to next whole second down
 966                 SMPTE::seconds_floor( smpte );
 967
 968                 for (n = 0; n < nmarks; n++) {
 969                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
 970                         if ((smpte.seconds % mark_modulo) == 0) {
 971                                 if (smpte.seconds == 0) {
 972                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
 973                                         (*marks)[n].position = pos;
 974                                 } else {
 975                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
 976                                         (*marks)[n].position = pos;
 977                                 }
 978                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
 979                         } else {
 980                                 snprintf (buf, sizeof(buf)," ");
 981                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
 982                                 (*marks)[n].position = pos;
 983
 984                         }
 985                         (*marks)[n].label = g_strdup (buf);
 986                         SMPTE::increment_seconds( smpte );
 987                 }
 988         } else if (show_minutes) {
 989                 // Find smpte time of this sample (pos)
 990                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
 991                 // Go to next whole minute down
 992                 SMPTE::minutes_floor( smpte );
 993
 994                 for (n = 0; n < nmarks; n++) {
 995                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
 996                         if ((smpte.minutes % mark_modulo) == 0) {
 997                                 if (smpte.minutes == 0) {
 998                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
 999                                 } else {
1000                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1001                                 }
1002                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1003                         } else {
1004                                 snprintf (buf, sizeof(buf)," ");
1005                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1006
1007                         }
1008                         (*marks)[n].label = g_strdup (buf);
1009                         (*marks)[n].position = pos;
1010                         SMPTE::increment_minutes( smpte );
1011                 }
1012         } else if (show_hours) {
1013                 // Find smpte time of this sample (pos)
1014                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1015                 // Go to next whole hour down
1016                 SMPTE::hours_floor( smpte );
1017
1018                 for (n = 0; n < nmarks; n++) {
1019                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1020                         if ((smpte.hours % mark_modulo) == 0) {
1021                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1022                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1023                         } else {
1024                                 snprintf (buf, sizeof(buf)," ");
1025                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1026
1027                         }
1028                         (*marks)[n].label = g_strdup (buf);
1029                         (*marks)[n].position = pos;
1030
1031                         SMPTE::increment_hours( smpte );
1032                 }
1033         } else { // show_frames
1034                 // Find smpte time of this sample (pos)
1035                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1036                 // Go to next whole frame down
1037                 SMPTE::frames_floor( smpte );
1038
1039                 for (n = 0; n < nmarks; n++) {
1040                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1041                         if ((smpte.frames % mark_modulo) == 0)  {
1042                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1043                                 (*marks)[n].position = pos;
1044                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1045                         } else {
1046                                 snprintf (buf, sizeof(buf)," ");
1047                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1048                                 (*marks)[n].position = pos;
1049
1050                         }
1051                         (*marks)[n].label = g_strdup (buf);
1052                         SMPTE::increment( smpte );
1053                 }
1054         }
1055
1056         return nmarks;
1057 }
1058
1059
1060 gint
1061 Editor::metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1062 {
1063         if (session == 0) {
1064                 return 0;
1065         }
1066
1067         TempoMap::BBTPointList::iterator i;
1068
1069         uint32_t beats = 0;
1070         uint32_t bars = 0;
1071         uint32_t desirable_marks;
1072         uint32_t magic_accent_number = 1;
1073         gint nmarks;
1074         char buf[64];
1075         gint  n = 0;
1076         nframes_t pos;
1077         bool bar_helper_on = true;
1078
1079         BBT_Time next_beat;
1080         nframes_t next_beat_pos;
1081
1082         if ((desirable_marks = maxchars / 7) == 0) {
1083                return 0;
1084         }
1085
1086         /* align the tick marks to whatever we're snapping to... */
1087
1088         switch (snap_type) {
1089         case SnapToAThirdBeat:
1090                 bbt_beat_subdivision = 3;
1091                 break;
1092         case SnapToAQuarterBeat:
1093                 bbt_beat_subdivision = 4;
1094                 break;
1095         case SnapToAEighthBeat:
1096                 bbt_beat_subdivision = 8;
1097                 magic_accent_number = 2;
1098                 break;
1099         case SnapToASixteenthBeat:
1100                 bbt_beat_subdivision = 16;
1101                 magic_accent_number = 4;
1102                 break;
1103         case SnapToAThirtysecondBeat:
1104                 bbt_beat_subdivision = 32;
1105                 magic_accent_number = 8;
1106                 break;
1107         default:
1108                bbt_beat_subdivision = 4;
1109                 break;
1110         }
1111
1112         if (current_bbt_points == 0 || current_bbt_points->empty()) {
1113                 return 0;
1114         }
1115
1116         i = current_bbt_points->end();
1117         i--;
1118         bars = (*i).bar - (*current_bbt_points->begin()).bar;
1119         beats = current_bbt_points->size() - bars;
1120
1121         /*Only show the bar helper if there aren't many bars on the screen */
1122         if (bars > 1) {
1123                 bar_helper_on = false;
1124         }
1125
1126         if (desirable_marks > (beats / 4)) {
1127
1128                 /* we're in beat land...*/
1129
1130                 uint32_t tick = 0;
1131                 uint32_t skip;
1132                 uint32_t t;
1133                 nframes_t frame_skip;
1134                 double frame_skip_error;
1135                 double accumulated_error;
1136                 double position_of_helper;
1137                 bool i_am_accented = false;
1138                 bool we_need_ticks = false;
1139                 bool helper_active = false;
1140
1141                 position_of_helper = lower + (30 * Editor::get_current_zoom ());
1142
1143                 if (desirable_marks >= (beats)) {
1144                         nmarks = (beats * bbt_beat_subdivision) + 1;
1145                         we_need_ticks = true;
1146                 } else {
1147                         nmarks = beats + 1;
1148                 }
1149
1150                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1151
1152                 (*marks)[0].label = g_strdup(" ");
1153                 (*marks)[0].position = lower;
1154                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1155
1156                 for (n = 1,   i = current_bbt_points->begin(); n < nmarks && i != current_bbt_points->end(); ++i) {
1157
1158                         if ((*i).frame < lower && (bar_helper_on)) {
1159                                         snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1160                                         (*marks)[0].label = g_strdup (buf);
1161                                         helper_active = true;
1162                         } else {
1163
1164                           if ((*i).type == TempoMap::Bar)  {
1165                             if (((*i).frame < position_of_helper) && helper_active) {
1166                               snprintf (buf, sizeof(buf), " ");
1167                             } else {
1168                               snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1169                             }
1170                             (*marks)[n].label = g_strdup (buf);
1171                             (*marks)[n].position = (*i).frame;
1172                             (*marks)[n].style = GtkCustomRulerMarkMajor;
1173                             n++;
1174
1175                           } else if (((*i).type == TempoMap::Beat) && ((*i).beat > 1)) {
1176                             ((((*i).frame < position_of_helper) && bar_helper_on) || !we_need_ticks) ?
1177                               snprintf (buf, sizeof(buf), " ") : snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1178                             if (((*i).beat % 2 == 1) || we_need_ticks) {
1179                               (*marks)[n].style = GtkCustomRulerMarkMinor;
1180                             } else {
1181                               (*marks)[n].style = GtkCustomRulerMarkMicro;
1182                             }
1183                             (*marks)[n].label =  g_strdup (buf);
1184                             (*marks)[n].position = (*i).frame;
1185                             n++;
1186                           }
1187
1188                         }
1189
1190
1191                         /* Add the tick marks */
1192
1193                         if (we_need_ticks && (*i).type == TempoMap::Beat) {
1194
1195                                 /* Find the next beat */
1196
1197                                 next_beat.beats = (*i).beat;
1198                                 next_beat.bars = (*i).bar;
1199
1200                                 if ((*i).meter->beats_per_bar() > (next_beat.beats + 1)) {
1201                                   next_beat.beats += 1;
1202                                 } else {
1203                                   next_beat.bars += 1;
1204                                   next_beat.beats = 1;
1205                                 }
1206
1207                                 next_beat_pos = session->tempo_map().frame_time(next_beat);
1208
1209                                 frame_skip = (nframes_t) floor (frame_skip_error = (session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1210                                 frame_skip_error -= frame_skip;
1211                                 skip = (uint32_t) (Meter::ticks_per_beat / bbt_beat_subdivision);
1212
1213                                 pos = (*i).frame + frame_skip;
1214                                 accumulated_error = frame_skip_error;
1215
1216                                 tick = skip;
1217
1218                                 for (t = 0; (tick < Meter::ticks_per_beat) && (n < nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1219
1220                                         if (t % magic_accent_number == (magic_accent_number - 1)) {
1221                                                 i_am_accented = true;
1222                                         }
1223                                         if (Editor::get_current_zoom () > 32) {
1224                                                 snprintf (buf, sizeof(buf), " ");
1225                                         } else if ((Editor::get_current_zoom () > 8) && !i_am_accented) {
1226                                                 snprintf (buf, sizeof(buf), " ");
1227                                         } else  if (bar_helper_on && (pos < position_of_helper)) {
1228                                                 snprintf (buf, sizeof(buf), " ");
1229                                         } else {
1230                                                 snprintf (buf, sizeof(buf), "%" PRIu32, tick);
1231                                         }
1232
1233                                         (*marks)[n].label = g_strdup (buf);
1234
1235                                         /* Error compensation for float to nframes_t*/
1236                                         accumulated_error += frame_skip_error;
1237                                         if (accumulated_error > 1) {
1238                                                 pos += 1;
1239                                                 accumulated_error -= 1.0f;
1240                                         }
1241
1242                                         (*marks)[n].position = pos;
1243
1244                                         if ((bbt_beat_subdivision > 4) && i_am_accented) {
1245                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1246                                         } else {
1247                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1248                                         }
1249                                         i_am_accented = false;
1250                                         n++;
1251
1252                                 }
1253                         }
1254                 }
1255                 return n; //return the actual number of marks made, since we might have skipped some fro fractional time signatures
1256
1257        } else {
1258
1259                 /* we're in bar land */
1260
1261                 if (desirable_marks < (bars / 256)) {
1262                         nmarks = 1;
1263                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1264                         snprintf (buf, sizeof(buf), "too many bars... (currently %" PRIu32 ")", bars );
1265                         (*marks)[0].style = GtkCustomRulerMarkMajor;
1266                         (*marks)[0].label = g_strdup (buf);
1267                         (*marks)[0].position = lower;
1268                 } else if (desirable_marks < (uint32_t)(nmarks = (gint) (bars / 64) + 1)) {
1269                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1270                         for (n = 0,   i = current_bbt_points->begin(); i != current_bbt_points->end() && n < nmarks; i++) {
1271                                 if ((*i).type == TempoMap::Bar)  {
1272                                         if ((*i).bar % 64 == 1) {
1273                                                 if ((*i).bar % 256 == 1) {
1274                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1275                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1276                                                 } else {
1277                                                         snprintf (buf, sizeof(buf), " ");
1278                                                         if ((*i).bar % 256 == 129)  {
1279                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1280                                                         } else {
1281                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1282                                                         }
1283                                                 }
1284                                                 (*marks)[n].label = g_strdup (buf);
1285                                                 (*marks)[n].position = (*i).frame;
1286                                                 n++;
1287                                         }
1288                                 }
1289                         }
1290                 } else if (desirable_marks < (uint32_t)(nmarks = (bars / 16) + 1)) {
1291                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1292                         for (n = 0,  i = current_bbt_points->begin(); i != current_bbt_points->end() && n < nmarks; i++) {
1293                                 if ((*i).type == TempoMap::Bar)  {
1294                                         if ((*i).bar % 16 == 1) {
1295                                                 if ((*i).bar % 64 == 1) {
1296                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1297                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1298                                                 } else {
1299                                                         snprintf (buf, sizeof(buf), " ");
1300                                                         if ((*i).bar % 64 == 33)  {
1301                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1302                                                         } else {
1303                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1304                                                         }
1305                                                 }
1306                                                 (*marks)[n].label = g_strdup (buf);
1307                                                 (*marks)[n].position = (*i).frame;
1308                                                 n++;
1309                                         }
1310                                 }
1311                         }
1312                 } else if (desirable_marks < (uint32_t)(nmarks = (bars / 4) + 1)){
1313                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1314                         for (n = 0,   i = current_bbt_points->begin(); i != current_bbt_points->end() && n < nmarks; ++i) {
1315                                 if ((*i).type == TempoMap::Bar)  {
1316                                         if ((*i).bar % 4 == 1) {
1317                                                 if ((*i).bar % 16 == 1) {
1318                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1319                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1320                                                 } else {
1321                                                         snprintf (buf, sizeof(buf), " ");
1322                                                         if ((*i).bar % 16 == 9)  {
1323                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1324                                                         } else {
1325                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1326                                                         }
1327                                                 }
1328                                                 (*marks)[n].label = g_strdup (buf);
1329                                                 (*marks)[n].position = (*i).frame;
1330                                                 n++;
1331                                         }
1332                                 }
1333                         }
1334                 } else {
1335                         nmarks = bars + 1;
1336                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks );
1337                         for (n = 0,  i = current_bbt_points->begin(); i != current_bbt_points->end() && n < nmarks; i++) {
1338                                 if ((*i).type == TempoMap::Bar)  {
1339                                         if ((*i).bar % 4 == 1) {
1340                                                 snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1341                                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1342                                         } else {
1343                                                 snprintf (buf, sizeof(buf), " ");
1344                                                 if ((*i).bar % 4 == 3)  {
1345                                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1346                                                 } else {
1347                                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1348                                                 }
1349                                         }
1350                                         (*marks)[n].label = g_strdup (buf);
1351                                         (*marks)[n].position = (*i).frame;
1352                                         n++;
1353                                 }
1354                         }
1355                 }
1356                 return n;
1357         }
1358 }
1359
1360 gint
1361 Editor::metric_get_frames (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1362 {
1363         nframes_t mark_interval;
1364         nframes_t pos;
1365         nframes_t ilower = (nframes_t) floor (lower);
1366         nframes_t iupper = (nframes_t) floor (upper);
1367         gchar buf[16];
1368         gint nmarks;
1369         gint n;
1370
1371         if (session == 0) {
1372                 return 0;
1373         }
1374
1375         mark_interval = (iupper - ilower) / 5;
1376         if (mark_interval > session->frame_rate()) {
1377                 mark_interval -= mark_interval % session->frame_rate();
1378         } else {
1379                 mark_interval = session->frame_rate() / (session->frame_rate() / mark_interval ) ;
1380         }
1381         nmarks = 5;
1382         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1383         for (n = 0, pos = ilower; n < nmarks; pos += mark_interval, ++n) {
1384                 snprintf (buf, sizeof(buf), "%u", pos);
1385                 (*marks)[n].label = g_strdup (buf);
1386                 (*marks)[n].position = pos;
1387                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1388         }
1389
1390         return nmarks;
1391 }
1392
1393 static void
1394 sample_to_clock_parts ( nframes_t sample,
1395                         nframes_t sample_rate,
1396                         long *hrs_p,
1397                         long *mins_p,
1398                         long *secs_p,
1399                         long *millisecs_p)
1400
1401 {
1402         nframes_t left;
1403         long hrs;
1404         long mins;
1405         long secs;
1406         long millisecs;
1407
1408         left = sample;
1409         hrs = left / (sample_rate * 60 * 60);
1410         left -= hrs * sample_rate * 60 * 60;
1411         mins = left / (sample_rate * 60);
1412         left -= mins * sample_rate * 60;
1413         secs = left / sample_rate;
1414         left -= secs * sample_rate;
1415         millisecs = left * 1000 / sample_rate;
1416
1417         *millisecs_p = millisecs;
1418         *secs_p = secs;
1419         *mins_p = mins;
1420         *hrs_p = hrs;
1421
1422         return;
1423 }
1424
1425 gint
1426 Editor::metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1427 {
1428         nframes_t range;
1429         nframes_t fr;
1430         nframes_t mark_interval;
1431         nframes_t pos;
1432         nframes_t spacer;
1433         long hrs, mins, secs, millisecs;
1434         gchar buf[16];
1435         gint nmarks;
1436         gint n;
1437         gint mark_modulo = 100;
1438         bool show_seconds = false;
1439         bool show_minutes = false;
1440         bool show_hours = false;
1441         nframes_t ilower = (nframes_t) floor (lower);
1442         nframes_t iupper = (nframes_t) floor (upper);
1443
1444         if (session == 0) {
1445                 return 0;
1446         }
1447
1448         fr = session->frame_rate();
1449
1450         /* to prevent 'flashing' */
1451         if (lower > (spacer = (nframes_t)(128 * Editor::get_current_zoom ()))) {
1452                 lower = lower - spacer;
1453         } else {
1454                 lower = 0;
1455         }
1456         upper = upper + spacer;
1457         range = iupper - ilower;
1458
1459         if (range <  (fr / 50)) {
1460                 mark_interval =  fr / 100; /* show 1/100 seconds */
1461                 mark_modulo = 10;
1462         } else if (range <= (fr / 10)) { /* 0-0.1 second */
1463                 mark_interval = fr / 50; /* show 1/50 seconds */
1464                 mark_modulo = 20;
1465         } else if (range <= (fr / 2)) { /* 0-0.5 second */
1466                 mark_interval = fr / 20;  /* show 1/20 seconds */
1467                 mark_modulo = 100;
1468         } else if (range <= fr) { /* 0-1 second */
1469                 mark_interval = fr / 10;  /* show 1/10 seconds */
1470                 mark_modulo = 200;
1471         } else if (range <= 2 * fr) { /* 1-2 seconds */
1472                 mark_interval = fr / 2; /* show 1/2 seconds */
1473                 mark_modulo = 500;
1474         } else if (range <= 8 * fr) { /* 2-5 seconds */
1475                 mark_interval =  fr / 5; /* show 2 seconds */
1476                 mark_modulo = 1000;
1477         } else if (range <= 16 * fr) { /* 8-16 seconds */
1478                 mark_interval =  fr; /* show 1 seconds */
1479                 show_seconds = true;
1480                 mark_modulo = 5;
1481         } else if (range <= 30 * fr) { /* 10-30 seconds */
1482                 mark_interval =  fr; /* show 10 seconds */
1483                 show_seconds = true;
1484                 mark_modulo = 5;
1485         } else if (range <= 60 * fr) { /* 30-60 seconds */
1486                 mark_interval = 5 * fr; /* show 5 seconds */
1487                 show_seconds = true;
1488                 mark_modulo = 3;
1489         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
1490                 mark_interval = 5 * fr; /* show 5 seconds */
1491                 show_seconds = true;
1492                 mark_modulo = 3;
1493         } else if (range <= 4 * 60 * fr) { /* 4 minutes */
1494                 mark_interval = 10 * fr; /* show 10 seconds */
1495                 show_seconds = true;
1496                 mark_modulo = 30;
1497         } else if (range <= 10 * 60 * fr) { /* 10 minutes */
1498                 mark_interval = 30 * fr; /* show 30 seconds */
1499                 show_seconds = true;
1500                 mark_modulo = 60;
1501         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
1502                 mark_interval =  60 * fr; /* show 1 minute */
1503                 show_minutes = true;
1504                 mark_modulo = 5;
1505         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
1506                 mark_interval = 2 * 60 * fr; /* show 2 minutes */
1507                 show_minutes = true;
1508                 mark_modulo = 10;
1509         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
1510                 mark_interval = 5 * 60 * fr; /* show 10 minutes */
1511                 show_minutes = true;
1512                 mark_modulo = 30;
1513         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
1514                 mark_interval = 20 * 60 * fr; /* show 20 minutes */
1515                 show_minutes = true;
1516                 mark_modulo = 60;
1517         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
1518                 mark_interval =  60 * 60 * fr; /* show 60 minutes */
1519                 show_hours = true;
1520                 mark_modulo = 2;
1521         } else {
1522
1523                 /* not possible if nframes_t is a 32 bit quantity */
1524
1525                 mark_interval = 4 * 60 * 60 * fr; /* show 4 hrs */
1526         }
1527
1528         nmarks = 1 + (range / mark_interval);
1529         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1530         pos = ((ilower + (mark_interval/2))/mark_interval) * mark_interval;
1531
1532         if (show_seconds) {
1533                 for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1534                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1535                         if (secs % mark_modulo == 0) {
1536                                 if (secs == 0) {
1537                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1538                                 } else {
1539                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1540                                 }
1541                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1542                         } else {
1543                                 snprintf (buf, sizeof(buf), " ");
1544                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1545                         }
1546                         (*marks)[n].label = g_strdup (buf);
1547                         (*marks)[n].position = pos;
1548                 }
1549         } else if (show_minutes) {
1550                 for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1551                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1552                         if (mins % mark_modulo == 0) {
1553                                 if (mins == 0) {
1554                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1555                                 } else {
1556                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1557                                 }
1558                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1559                         } else {
1560                                 snprintf (buf, sizeof(buf), " ");
1561                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1562                         }
1563                         (*marks)[n].label = g_strdup (buf);
1564                         (*marks)[n].position = pos;
1565                 }
1566         } else if (show_hours) {
1567                  for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1568                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1569                         if (hrs % mark_modulo == 0) {
1570                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1571                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1572                         } else {
1573                                 snprintf (buf, sizeof(buf), " ");
1574                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1575                         }
1576                         (*marks)[n].label = g_strdup (buf);
1577                         (*marks)[n].position = pos;
1578                 }
1579         } else {
1580                 for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1581                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1582                         if (millisecs % mark_modulo == 0) {
1583                                 if (millisecs == 0) {
1584                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1585                                 } else {
1586                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1587                                 }
1588                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1589                         } else {
1590                                 snprintf (buf, sizeof(buf), " ");
1591                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1592                         }
1593                         (*marks)[n].label = g_strdup (buf);
1594                         (*marks)[n].position = pos;
1595                 }
1596         }
1597
1598         return nmarks;
1599 }